@article{5545,
  author = {B. Faatz and R. W. B. Best and D. Oepts and P. W. van Amersfoort},
  title = {Hole Coupling in Free-Electron Lasers},
  abstract = {In this paper we present numerical simulations of the performance of a far-infrared Free Electron Laser with an aperture in the upstream cavity mirror. Two different applications of mirror apertures are studied: broadband extraction of radiation and injection of the electron beam. The emphasis is on the effect of the aperture on the amplitude of the higher-order transverse modes. It is shown that the mode distribution at saturation can be drastically influenced by variation of the mirror radius of curvature. A simple formula is derived which is quite useful to predict the dominant higher-order modes. This permits optimization of the cavity with respect to the application in question.},
  year = {1993},
  journal = {Ieee Journal of Quantum Electronics},
  volume = {29},
  number = {7},
  pages = {2229-2238},
  month = {Jul},
  isbn = {0018-9197},
  doi = {10.1109/3.237498},
  language = {eng},
}